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27150 Sigma-Aldrich

Chromotropic acid disodium salt dihydrate

puriss. p.a., ACS reagent, for the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti, ≥98.5%

Synonym: 1,8-Dihydroxynaphthalene-3,6-disulfonic acid disodium salt, 4,5-Dihydroxynaphthalene-2,7-disulfonic acid disodium salt

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Properties

Related Categories Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, C-D, Puriss p.a., Puriss p.a.,
grade   ACS reagent
InChI Key   QUEAKWJKJBFNEG-UHFFFAOYSA-L
grade   puriss. p.a.
assay   ≥98.5%
quality   for the detection of Ag, ClO3-, Cr, Hg, NO2-, NO32-, Ti
impurities   8-10% water
color   off-white
mp   >300 °C(lit.)

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Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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